AI Damage2019 Mercedes-Benz G 550: common problems
Owners of the 2019 Mercedes-Benz G 550 filed 5 complaints with NHTSA, most often about electrical system and electronic stability control. The maker issued 136 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 5
- Technical service bulletins (TSB)
- 136
What fails most often
- 1 Electrical system 40% of all complaints
- 2 Electronic stability control 40% of all complaints
- 3 Powertrain 20% of all complaints
- 4 Visibility 20% of all complaints
- 5 Latches, locks, linkages 20% of all complaints
- 6 Service brakes 20% of all complaints
- 7 Suspension 20% of all complaints
- Electrical system: 2 complaints (40% of all); manufacturer bulletins for this component: 44.
- Electronic stability control: 2 complaints (40% of all).
- Powertrain: 1 complaints (20% of all); manufacturer bulletins for this component: 24.
- Visibility: 1 complaints (20% of all); manufacturer bulletins for this component: 7.
- Latches, locks, linkages: 1 complaints (20% of all); manufacturer bulletins for this component: 2.
Symptoms owners describe
How many of the 5 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 2 | 0 | 44 |
| Electronic stability control | 2 | 0 | 0 |
| Powertrain | 1 | 0 | 24 |
| Visibility | 1 | 0 | 7 |
| Latches, locks, linkages | 1 | 0 | 2 |
| Service brakes | 1 | 0 | 2 |
| Suspension | 1 | 0 | 2 |
| Engine | 0 | 0 | 21 |
| Structure | 0 | 0 | 13 |
| Equipment | 0 | 0 | 9 |
| Exterior lighting | 0 | 0 | 7 |
| Steering | 0 | 0 | 7 |
| Engine and cooling | 0 | 0 | 5 |
| Fuel/propulsion system | 0 | 0 | 5 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The driver-side door latch on my 2019 Mercedes-Benz G550 is malfunctioning. The door fails to securely close or stay latched, even when shut firmly. This poses a serious safety hazard while driving, as the door may open unexpectedly during motion or remain partially ajar.
Lock Differential error message. Mercedes Benz attempted to fix twice but itâs still reporting the error.
My 2019 g550 has been to mercedes dealers twice for a "front/rear differential lock system malfunction" error appearing on the display screen. Along with this it shows the abs and esp are be inactive. Each time at a mercedes dealer they replace parts and say it is fixed. It is not fixed.
The contact stated that while driving approximately 55 mph and attempting to exit the freeway, the vehicle vibrated and the brakes activated independently. The contact turned off the vehicle and restarted and the vehicle then operated as intended. The contact stated the failure occurred multiple times.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 14,283 of 36,659 model years in the NHTSA data (top 39% most complained about).
On average one model year of the G 550 has 2 complaints (15 years in the data). This year has 5, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Electronic stability control. ABS/ESC sensors, steering angle, codes after suspension repair.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Complaint Clanking noise from the area of the speakers in the doors
Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and…
- Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9G‑TRONIC automatic…
Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9G‑TRONIC automatic transmission) and 725.1 (NAG3 facelift/9G‑TRONIC automatic transmission facelift) For faster, more effective and…
- Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE
Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. Cause Although the cause of the vibration…
- Complaint Noises in the steering column area when steering. See example file in the attachments area
"MRSM‑Schleifgeräusch_SCCMGrindingNoises. MOV". Cause Under analysis. Remedy Check which area of the steering column the noises occur in. Do the noises tend to occur at the bottom in the driver footwell or do they tend…
- Complaint Only vehicles with a variable transfer case are affected
This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, vibrations or jolting sensation may come from the drivetrain. It may be mistaken for a harsh shift. Cause…
- Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G‑TRONIC automatic…
Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G‑TRONIC automatic transmission) and 725.1 (NAG3 facelift/9G‑TRONIC automatic transmission facelift) For faster, more effective…
- Dear Mercedes-Benz Owner
In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA is extending the warranty coverage for the Diagnostic Module for…
- Complaint Consistently reproducible erroneous parktronic warnings from front with every key cycle
Cause The parking sensors are detecting the front brush guard. Remedy Complaint must be consistently reproducible and can occur multiple times a key cycle without obvious cause. NOTE: The parking system serves solely…
- Complaint Oil leaks found on M176 or M177 engines diagnosed to be from the cylinder head cover area Cause…
Complaint Oil leaks found on M176 or M177 engines diagnosed to be from the cylinder head cover area Cause Unknown (under investigation) Remedy If oil leaks are found at left or right cylinder head cover area please…
- Complaint A popup is seen on the HU with the message "data connection temporarily not available"
Potentially affected functionalities in NTG4.5, NTG5 1.Weather 2.Local Search 3.IP Radio 4.Send2Car 5.Speech Detection Service 6.Navigation 7.iHeartRadio 8.Traffic Cams Cause MB Apps is sundowned for all vehicles with…
- Complaint 1
General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. Cameras 6. Other Park Topics. Cause Various root…
- Complaint This document is intended as a pre-case diagnostic reference for transmission related concerns
It will also ensure that if a case is necessary, all supporting documentation is available. This should not be used on its own as justification for creating a TIPS case. Cause The root cause will vary depending on the…
NHTSA lists 136 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2019 Mercedes-Benz G 550?
Owner complaints to NHTSA most often mention: electrical system, electronic stability control, powertrain. Total complaints: 5. The most frequent symptoms in complaint texts: driver assists: adaptive cruise, lane keeping (40%), door locks, latches, handles (20%), infotainment or screen glitches (20%).
How many service bulletins (TSB) were issued for the 2019 Mercedes-Benz G 550?
NHTSA lists 136 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2019 Mercedes-Benz G 550 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2019 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.